Mule stop-motion.



A. R. LAYMAN.

MULE STOP MOTiON.

APPLICATION FILED AUG-27.1913.

l ,21 5,39. Patentd Feb. 6, 1917.

able others skilled in the art to which it ARTHUR R.

LAYIVIAN, OE DOVER, NEW HAMPSHIRE.

IVIULE STOP-MOTION.

Application filed August 27, 1913.

To all whom it may concern:

Be it known that I, ARTHUR H. LAYMAN, a citizen of the United States, residing at Dover, in the county of Straiford and State of New Hampshire, have invented certain new and useful Improvements in Mule Stop- Motions; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enappertains to make and use the same.

This invention comprehends improvements in stopping machines for spinning mules, and relates more particularly to a safety attachment of this nature, which may be used in connection with a spinning mule of the Johnson & Bassett or Davis & Furber type.

The primary object of the invention is to provide a stop-motion, which will operate when a draft rope breaks to actuate the shipper lever so as to throw the driving belt to the loose pulley, and which will also threw out the draft clutch.

Another and more specific object of the invention is to provide an attachment in eluding rock shafts carrying rollers which engage the draft ropes and means for rock ing said shafts when the draft ropes break, whereby the shipper lever and draft clutch lever are actuated through means of suitable connections.

It is a .well known fact that unless a spinning mule is instantly stopped when the draft rope breaks, the ends are broken down, and very often much damage is done to the machine. My invention aims to provide automatic means for instantly stopping a spinning mule when a draft rope breaks, thus preventing the ends being broken down, and the machine being damaged. The device permits a larger draft rope to be used and makes it safe to run a machine at a much higher speed than is now found practicable. I

With these and other objects in view as will become more apparent as the description proceeds, the invention consists in certain novel features of construction, conihination and arrangement of parts as will be hereinafter fully described and claimed.

F or a complete understanding of my in vention, reference is to be had to the following description and accompanying drawings, in which Specification of Letters Patent.

Patented Feb. 6, 1917., Serial No. 786,912.

The figure is a perspective view, showing parts of a mule head with my stop-motion in position.

Referring in detail. to the drawings by numerals 5 designates as an entirety the frame of a spinning mule head of the Davis a Furber type. The frame supports the driving pulley 6 and a loose pulley 7, which are driven by a belt, not shown, that runs through a loop 8 secured to the upper end of the shipper lever 9, said lever being pivotally secured intermediate its ends and indicated by the numeral 10. By means of this lever, the driving belt may be shifted from the driving pulley G to the loose pulley 7. The draft scroll 11 is secured to a shaft journaled rights 12 of the frame and may be thrown into and out of operation through the mediumof the draft clutch lever 13. 14 and 15 designate respectively the top and bottom draft ropes, which run over the scroll 11. The foregoing parts are included in the head of a spinning mule of a common type and are merely shown for the purpose of illustrating the application of my stop-motion.

in carrying out my invention, I provide a rock shaft 16, which is journaled through suitable bearings 17 mounted upon the floor which supports the spinning wheel. The rock shaft is disposed in a plane parallel to the planes of the shafts which support the pulleys and scroll and is formed with an offset portion 18 carrying an arm 19. The arm 19 extends under the lower dra rt rope 15, which la liter runs under a. tension pulley 20. A roller ill. is loosely mounted upon an arm 19 of the rock shaft and is forced upwardly into engagement with the draft rope by means of a contractile spiral spring 22 secured at one end to the laterally eX- tending arm 23 and at the other end to the floor. A se mental member 24 in the form of a half circle is secured adjacent one end of the rock shaft 16 and has secured to it a. chain or other flexible connection 25. The chain extends around the segmental memliier under a small binder roller 26, arouml a guide pulley 2'7 and connected to the lower end of the shipper lever 9. When the bottom rope 15 breaks or slackens, the shaft 16 is rocked so as to cause the shipper lever 9 to throw the driving belt onto the loose pulley 7. It will be noted that when horizontally between the up the rope 15 holds the roller 21 into its lowcred position, the chain 25 is slack so that the shipper lever may be manually operated to start or stop the mule.

In order that the draft clutch may be instantly thrown out so as to stop the scroll when the top rope let breaks, I provide means including a crank shaft '28. This shaft is journaled at one end through a bracket arm 29 secured to the frame 5 and at its other end through a bearing arm 30. The crank portion 31 of the crank shaft carries a roller 32, which is adapted to bear against the top draft rope 1i and be normally held in an elevated position. An arm 33 is secured to the crank shaft and has attached to its free end a contractile spring 34:, said spring being also secured to the frame 5. An arm 35 is secured to crank shaft 28 and is connected by means of a fastener 36 to the vertical connecting rod 87, which latter is secured at its lower end to the draft clutch lever 13. The upper end of the connecting rod 37 is longitudinally slotted, as indicated by the numeral 38 and the pin 36 extends through this slot. As the draft rope 1% moves from the large to the small end of the draft scroll, the shaft 28 is rocked slightly and the slot 38 permits this movement taking place without disturbing the lever 13. VJhen the. draft rope 1% is e tight, the offset portion 31 of the crank shaft the outward run of the mule, 40 h 28 is held above the shaft and the arm away from the frame 5.

main portions of said 32 extends upwardly At this time the arm 35 is disposed in an essentially horizontal plane. The top rope 14:, on the Davis & Furber mule is often broken at the end of owing to the draft mechanism not working properly or because of some obstruction that may prevent the machine from running far enough out so as to strike the lever that disengages the draft clutch at this point. My invention aims to provide automatic means for throwing out the draft clutch at this point, preventing the rope from breaking. Should the rope let slacken or break, the spring 34.- piills the free end of the arm 33 toward the frame 5 which causes the crank shaft 28 to rotate or rock so as to raise the free end of the arm 35. This upward movement of the arm 35 raises the connecting rod 37 which operates upon the lever 13 so as to throw out of engagement the draft clutch. Since the disengagement of the draft clutch alously described so as to throw connection with the 15 to slacken, the shipbe actuated as previthe driving lows the bottom rope per lever 9 will also belt to the loose pulley 7 From the foregoing description taken in accompanying drawing,

it will be apparent that I have provided a very simple, practical, and reliable stop-inotion for spinning mules, which will operate lever pivoted intermediate of one end of the 7 connected at the other described my invention, I

having its upper portion arranged adjacent to the said pulleys and adapted to shift a belt from one pulley to another,-a scroll draft I transversely one side of rope, a rock shaft, disposed" with relation to the draft rope at the same, a segmental member secured to the rock shaft, a flexible connection secured at one end to the segmental member and end with the lower end of the shipper lever, pulleys for guiding the flexible connection intermediate the segmental member and the shipper lever whereby a rocking of the shaft will actuate the shipper lever to move a ing'pulley to the loose pulley, a spring for urging the rock shaft to move the shipper lever from the driving pulley to the loose pulley, and an arm-having a laterally extending pulley engaged by the lower flight or stretch of the draft rope, said arm being connected with the rock shaft and adapted to release the same to permit thespring to actuate the rock shaftwhen the draft rope breaks or slackens. V 4

2. The combination with loose and driving pulleys, a vertically disposed shipper lever pivoted intermediateof its ends and provided at its upper end with a belt receiving portion, a scroll draft rope and a stop motion comprising a rock shaft having an arm provided with a laterally projecting pulley wheel extending beneath the lower flight or stretch of the draft rope, a tension pulley mounted above the lower flight or stretch of the draft rope and engagingthe its ends and 7 belt from the drivsame adjacent to the said wheel, a segmentalw member secured to the rock shaft, a flexible "connection attached atone end to the segmental member and connected at its. other endwith the lower'terminal ofthe shipper lever, pulleys for guiding the flexible connection intermediate hesegmental connection ,lever whereby a rocking and thefshipper V of the shaft will actuate the shipper lever to move a belt froma driv ng pulley to a loose pulley and a spring for urging the rock shaft for actuating or slackens.

w L 3. The combination of a draft rope, a with the crank shaft for actuating the same 10 crank shaft, having a crank portion prowhen the upper flight of the draft rope vided With a pulley engaging the upper breaks or slackens. flight of the draft rope, said crank shaft In testimony whereof I aflix my signature having an arm, a vertical rod having a in presence of two Witnesses.

slotted connection at its upper end with the ARTHUR R. LAYMAN. said arm, a lever connected to the lower Witnesses:

end of the said rod and designed to be con- CHARLEs VVESLEY THOMPSON, nected With a clutch, and a springconnected CHARLES H. Foss.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Fatentei Washington, D. G. 

